Abstract: An ultrasonic wave cosmetic device for producing ultrasonic wave stimulation on the facial skin by a vibration unit having an ultrasonic wave vibration element. The ultrasonic wave cosmetic device includes a probe provided with a vibration unit where one surface of the vibration unit contacts the skin and another surface is structured by a horn connected to the ultrasonic wave vibration element, and a drive unit for driving the ultrasonic wave vibration element. The drive unit produces one of either a first fundamental frequency where a half-wave length thereof matches a thickness of the vibration unit, which is a sum of the ultrasonic wave vibration element and the horn, when propagating therethrough, or a first harmonic frequency which is an integer multiple of the first fundamental frequency, as a drive frequency for driving the ultrasonic wave vibration element.

Abstract: An ultrasonic wave cosmetic device for producing ultrasonic wave stimulation on the facial skin by a vibration unit having an ultrasonic wave vibration element. The ultrasonic wave cosmetic device includes a probe provided with a vibration unit where one surface of the vibration unit contacts the skin and another surface is structured by a horn connected to the ultrasonic wave vibration element, and a drive unit for driving the ultrasonic wave vibration element. The drive unit produces one of either a first fundamental frequency where a half-wave length thereof matches a thickness of the vibration unit when propagating therethrough, or a first harmonic frequency which is an integer multiple of the first fundamental frequency, as a drive frequency for driving the ultrasonic wave vibration element.